Independence of events means that what happened before has no effect on what will happen next. For example:
- In roulette, every time the wheel is spun, the number or colour that results is unrelated to what has come up before. The wheel has no memory.
- The same thing happens with Slot Machines and VLTs. The result of pushing the spin/deal button is not connected to previous pushes. Any result is possible at any time.
Exceptions – There are some types of games where previous results can have some effect on what happens next. Blackjack is a good example: once a card has been dealt, it won’t be back in play until all the cards are shuffled again. Previous hands can have a limited effect on current or future hands.